/**
* M A N B E A S T - S Y S T E M S 
* Page Built by MANBEAST SYSTEMS copyright 2008
* Client: Kite Systems
* Date: 04.06.08
* Page Title: Front-end Javascript Functions
* Contact: tomfallowfield@gmail.com
*/

// this function means we don't have to use document.getelemenetbyid all the time
// NB it used to be $() but i changed it to $a() to avoid a conflict with prototype.js
function $a() {
	var elements = new Array();
	for (var i = 0; i < arguments.length; i++) {
		var element = arguments[i];
		if (typeof element == 'string')
			element = document.getElementById(element);
		if (arguments.length == 1)
			return element;
		elements.push(element);
	}
	return elements;
}

// called when page loads. sets focus to search box
function pageinit(){
$a('searchfield').focus()
}

/* DROP DOWN MENU SCRIPT */
var menuids=["topmenu"] 
function buildsubmenus_horizontal(){
for (var i=0; i<menuids.length; i++){
  var ultags=document.getElementById(menuids[i]).getElementsByTagName("ul")
    for (var t=0; t<ultags.length; t++){
		if (ultags[t].parentNode.parentNode.id==menuids[i]){ //if this is a first level submenu
			ultags[t].style.top=ultags[t].parentNode.offsetHeight+"px" //dynamically position first level submenus to be height of main menu item
			ultags[t].parentNode.getElementsByTagName("a")[0].className="mainfoldericon"
		}
		else{ //else if this is a sub level menu (ul)
		  ultags[t].style.left=ultags[t-1].getElementsByTagName("a")[0].offsetWidth+"px" //position menu to the right of menu item that activated it
    	ultags[t].parentNode.getElementsByTagName("a")[0].className="subfoldericon"
		}
    ultags[t].parentNode.onmouseover=function(){
    this.getElementsByTagName("ul")[0].style.visibility="visible"
    }
    ultags[t].parentNode.onmouseout=function(){
    this.getElementsByTagName("ul")[0].style.visibility="hidden"
    }
    }
  }
}
if (window.addEventListener)
window.addEventListener("load", buildsubmenus_horizontal, false);
else if (window.attachEvent)
window.attachEvent("onload", buildsubmenus_horizontal)